I've never used MyView, but a quick Google search showed that MyView has been around for several years and they're a legitimate company. Plus, they have a great MyView Member Credo that states:

As a MyView member, your opinion matters so your voice really will be heard. Because we depend on your participation, we pledge to make sure that we will NEVER betray your trust by selling, loaning, or leasing your personal information to ANY third party. Never, ever, ever. Really. We're serious.

Are you signed up for MyView? If you are, please share your experience in a comment below!